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Guar gum does not impair the absorption and utilization of dietary nitrogen but affects early endogenous urea kinetics in humans
Guar gum dietary nitrogen urea kinetics
2016/6/14
Viscous gums enhance viscosity in the upper gastrointestinal
lumen, quickly disturbing motility and promoting
fluid secretion.
Incorporation of urea and ammonia nitrogen into ileal and fecal microbial proteins and plasma free amino acids in normal men and ileostomates
Ammonia urea nitrogen metabolism
2016/6/2
The importance of urea nitrogen reutilization in
the amino acid economy of the host remains to be clarified.
Urea-nitrogen production and salvage are modulated by protein intake in fed humans: results of an oral stable-isotope-tracer protocol and compartmental modeling
stable-isotope-tracer protocol compartmental modeling
2016/12/30
The influence of protein source on postprandial urea kinetics is poorly understood, despite its nutritional significance with respect to nitrogen homeostasis. Furthermore, traditional tracer infusion ...
Response of whole-body protein and urea turnover to exercise differs between patients with chronic obstructive pulmonary disease with and without emphysema
protein metabolism urea synthesis stable isotopes
2016/12/30
Exercise is known to improve physical capacity and muscle mass in patients with chronic obstructive pulmonary disease (COPD). However, recent evidence suggests that exercise may also negatively influe...
Differential utilization of systemic and enteral ammonia for urea synthesis in control subjects and ornithine transcarbamylase deficiency carriers
Urea synthesis humans ammonia flux
2017/1/4
Female carriers of ornithine transcarbamylase deficiency (OTCD) have nearly normal rates of total urea synthesis, but they derive less urea from systemic glutamine amide nitrogen than do healthy perso...